Compare Cannabis Seed Banks & Breeders

Netherlands (founded) / Amsterdam (current HQ)

Green House Seeds

Established in Amsterdam, Green House Seed Co. is an undisputed titan of global cannabis breeding. Founder Arjan Roskam began cultivating exotic landrace sativas and breeding pioneering genetics in the mid-1980s before opening the first Green House Coffee Shop in 1992 and establishing the official seed bank shortly after. With over 40 High Times Cannabis Cups and dozens of Highlife awards to its name, Green House Seed Co. shaped the modern cannabis landscape. The company is credited with popularizing some of the world's most influential genetics—including the famous "White" family (White Widow, White Rhino) and legendary Hazes (Super Silver Haze, Super Lemon Haze, Hawaiian Snow). Beyond seed production, Green House Co. expanded its impact on global cannabis culture through the famous Strain Hunters initiative—expeditions led by Roskam and the late Franco Loja to preserve, collect, and document rare landrace strains from remote corners of the globe. Today, Green House Seed Co. offers a diverse catalog of feminized, autoflowering, and CBD-rich seeds backed by decades of proven breeding mastery.

Available genetics12 shown

A.M.S.Feminised€10.00THC 19.05%63 daysAlienZFeminised€14.00THC 24.30%70 daysAmnesiaFeminised€12.00THC 25.00%70 daysArjan Strawberry HazeFeminised€10.00THC 24.00%70 daysArjan’s Haze #3Feminised€9.00THC 20.29%70 daysArjan’s Ultra Haze #1Feminised€30.00THC 21.60%98 daysArjan’s Ultra Haze #2Feminised€9.00THC 22.90%91 daysBanana KrumbleFeminised€13.00THC 24.78%63 daysBlack Toffee AutoFeminised€14.00THC 21.50%56 daysBubba KushFeminised€11.00THC 22.00%63 daysExodus CheeseFeminised€10.00THC 26.00%56 daysExodus Cheese AutoFeminised€10.00THC 24.00%49 days

14 strains Explore Green House Seeds →

Spain (founded) / Spain (current HQ)

Black Farm Genetix

Black Farm Genetix is a prominent Spanish seed bank based in Sitges, celebrated for importing and crossing premium U.S. genetics with European breeding techniques. They specialize in photoperiod-dependent, feminised strains known for intense terpene profiles, complex aromas, high resin production, and robust THC levels.

Available genetics8 shown

Banana GlukiesFeminised€110.00THC 25.00%65 daysFrosted AcaiFeminised€65.00THC 30.00%70 daysGlueberryFeminised€65.00THC 26.00%70 daysLemon MiracleFeminised€65.00THC 25.00%70 daysRunz GummyFeminised€65.00THC 25.00%70 daysSinaloaFeminised€65.00THC 25.00%70 daysVenice KushFeminised€65.00THC 17.00%65 daysZkittles DivorceFeminised€65.00THC 25.00%70 days

8 strains Explore Black Farm Genetix →

Netherlands (founded)

Vision Seeds

Founded in the Netherlands in 1995 by passionate grower and breeder Danny B., Vision Seeds is one of the Dutch cannabis scene's most reliable and enduring seed banks. What began in the mid-1990s as a dedicated quest to source, analyze, and collect the finest cannabis genetics from around the globe quickly evolved into a full-scale breeding operation supplying premium seeds to cultivators worldwide. Vision Seeds approaches genetic development with classic Dutch attention to detail and consistency. Every strain in their catalog undergoes extensive selection to ensure strong germination viability, structural vigor, high mold resistance, and consistent growth traits across all medium types and environments. By crossing famous European coffeeshop classics with elite North American lines and rare global landraces, Vision Seeds creates accessible hybrids known for high cannabinoid output and rich, distinctive flavor profiles. Their time-tested catalog features world-renowned bestsellers and fan-favorite strains such as Vision Kush, Super Skunk, Amnesia Haze, Northern City Haze, Jack Herer, Choco Bud, and Tom Kush OG. Available in stable photoperiod feminized and rapid autoflowering ("Vision Auto") varieties, Vision Seeds remains a trusted global standard for home growers and commercial operators seeking high-performing, hassle-free Dutch genetics.

Available genetics3 shown

AK 49Feminised€19.00THC 22.00%49 daysAK 49 AutoFeminised€19.00THC 25.00%70 daysAmnesia x Buddha KushFeminised€33.00THC 28.00%77 days

3 strains Explore Vision Seeds →

Spain (founded)

Seedstockers

Established in Barcelona in 2017, Seedstockers Seeds was launched by an experienced team of industry professionals connected to leading European seed companies. Operating with a core mission to make high-grade cannabis genetics accessible to all growers, the brand balances mass-market affordability with stringent quality standards and high germination viability. Seedstockers built its initial genetic base around prized European mother clones held in Spain since the 1990s and 2000s. The brand rapidly expanded its catalog by acquiring elite, cutting-edge California and West Coast US clone-only lines. Their breeding program focuses heavily on high cannabinoid production, massive yield potential, robust plant vigor, and loud, modern terpene profiles ranging from sweet dessert treats to pungent skunk and gas. Their recognized catalog features award-winning bestsellers and fan-favorite strains such as BCN Critical XXL, AK420, Panty Punch, Blackberry Gum, Gelato 41, Sticky Monkey GG#4, and Santa Marta Haze. Available in photoperiod feminized, rapid autoflowering, and flagship "Superior" releases, Seedstockers Seeds remains a premier international choice for commercial operators and budget-conscious home growers seeking maximum return on investment.

Available genetics2 shown

AK420Feminised€17.00THC 22.00%70 daysAK420 AutoFeminised€17.00THC 22.00%70 days

2 strains Explore Seedstockers →

Spain (founded)

Sweet Seeds

Established in Valencia, Spain, in 2005, Sweet Seeds is one of Europe's most decorated and influential cannabis seed banks. Founded with a mission to deliver exceptionally aromatic, high-yielding, and ultra-stable feminized genetics, the brand revolutionized the European market by prioritizing rich organoleptic qualities—specifically sweet, fruity, and dessert-like terpene profiles. Sweet Seeds has repeatedly led industry innovation over two decades. They were among the earliest breeders to refine high-potency feminized autoflowering varieties ("Sweet Auto"), pioneer ultra-fast flowering photoperiod hybrids ("F1 Fast Version"), and introduce high-anthocyanin strains with striking ruby and purple buds ("The Red Family"). Every batch undergoes rigorous quality control to ensure top germination viability, high cannabinoid levels, and robust mold resistance. Their globally celebrated catalog features iconic High Times Cannabis Cup winners and fan-favorite strains such as Cream Caramel, Green Poison, Gorilla Girl, Sweet Special, Dark Devil Auto, Red Strawberry Banana Auto, and Jack 47. Offering photoperiod feminized, F1 Fast Version, automatic, and high-CBD medical genetics, Sweet Seeds remains an indispensable gold standard for home growers and commercial cultivators worldwide.

Available genetics2 shown

+ Speed AutoFeminised€26.00THC 20.00%49 daysAmerican Pie MixFeminised€17.00THC 25.00%63 days

2 strains Explore Sweet Seeds →

Netherlands (founded)

Sumo Seeds

Founded in the Netherlands, Sumo Seeds was created by a collective of veteran Dutch growers and master breeders dedicated to refining and modernizing classic European cannabis genetics. Taking their name from the legendary strength, size, and presence of Sumo wrestlers, the brand designs every strain to achieve massive yield potential, high structural stability, and powerful cannabinoid density. Sumo Seeds builds its genetic archive by combining proven Dutch Coffeeshop staples with hand-selected landraces and elite North American hybrids collected during global travels. Their selective breeding program focuses on heavy resin output, robust pest and mold resistance, short flowering times, and complex terpene profiles ranging from sweet candy and tropical fruit to pungent skunk-diesel notes. Their recognized catalog includes award-winning hybrids and popular bestsellers such as Sumo's OG Kush, Green Gelato, Apple Punch, Amnesia Ganja Haze, Thunderstruck, and CBD Cherry Kush. Offering photoperiod feminized seeds, fast-blooming autoflowers, and specialized CBD lines, Sumo Seeds remains a trusted choice for home growers and commercial cultivators worldwide.

Available genetics1 shown

AK Full AutoFeminised€17.00THC 20.00%70 days

1 strain Explore Sumo Seeds →